Adding-machine.



H. LANDSIEDEL.

ADDING MACHINE.

APPLICATION FILED JAN. 23. 1912.

1 ,098,739. Ptented June 2, 1914.

3 SHEETS-SHEET H. LANDSIEDEL.

\ ADDING momma. I APPLIOATIOE FILED JAN. 23, 1912.

Patented June 2,1914.

3 SHEETS-SHEET 2.

H. LANDSIEDBL.

ADDING MACHINE.

APPLICATION FILED JAN. 23, 1912.

Patented June 2, 1914.

3 SHEET QHEEI 3 LOQBJEQW W R 2 AS e a! @Q m h I FEJEIZEIZIZIEIE: MyQ/GEZIEJIIIIEIIZEE Slllll HARRY LANlJElIlLlDElL, 01? POPLARlillfftl'lill, llEIFESOUlEl, ASSJIG'NOR TO DATL'IUN ADDING LWZACHINEGUMEANY, 0 ET. LUUIS, MISSOURI, A. CUIt-EPORATION 015 MIElSOUlEtlI.

Specification of Letters Patent.

lidortented done 2, 1914.

Application illed .l'enuery :23, 1912. Serial No. G'FiLBEO.

To all whom it may concern Be it known that it, l-lmnzr Lenosmonn, acitizen or the United idtetes, residing at Poplar Bluff, in the countyoi. llutlcr and State of Missouri, have invented new and usefullmprovements. in Addingdldechines, of which the following is ospecification, en ehling those skilled in the art to which my inventioneppertoins to understand the same.

This invention relates to adding machines of the type in which there iso movable carriage arranged to receive a mechanical representation. oithe numbers to he added or recorded; and an object oi the presentinvention to provide :1 carriage for the pur poses mentioned, of onimproved and novel construction and. of more facile operation than thecarriages ot present employed in adding machines.

Another object is to provide the carriage with a novel and superiorescepement device and motor whereby the operation of the carriege ismaintained securely Within the limits of obsolete and invariableeccurecy. while the speed of operation. ofthe carriage may he suited toony reeuiirements end excess movement is positively avoided.

A further object is to provide the cerriege with en escepeinent devicein which theeseejement recite ore devoidv oil on direct springconnections. hut connected by a lever which insures alternate operationof the racks to permit movement oi the carriage hy the motor "when theescopement perv]. or detcut is moved from. one to the other oil" saidreeks.

llhere are many other objects to he at t'iined, all of which will bereadily comprehended by those skilled in the art to which the inventionrelates. when the following description is read in the light of ti 3accompanying drawings, in which Figure l is a side elevation showing theprincipal mechanism of e. '\vell-lmown oddmg machine in. which myinvention and improvemcnts are en'ihodied. Fig. Q a front side elevationoi the carriage and associated mechanism. the key levers which operateto set up numbers in the carriage being in section. llig'. 3-is 2. viewof the carriage from one end thereof, certain ports being in section ona line such as of Fig. l ig". lis e detail sections view of the supportfor the esccpement pawl or dctent, the sec tion being on the line at 4.-of Fig. Fit 5 is perspective View of the eseopemcnt pawl supportanduniversal her. Fig. 6 is e plan view of the carriage and associatedmechanism. Figs. Z' and 8 urc detail views oi the device connecting theescopement rocks. 1*" 9, 10, and ll. are d ctuil sectional views on theline 9il., l0-10 and Ill- 11, respectively cl l ig.

"he machine in which l. hovefemhodied my invention is knowncomn'ierciolly as the Dalton adding machine, and is constructed insubstantial conformity with the add-- inp; de mrtment of the combinedadding and writing; machine disclosed in l-luhert Hopkinss Patent No.1,039,130, dated fdeptemher 2d, 1912, the application ior which Yvesfiled January 24, 1903, Serial lilo. 140,390. lln seid machines there ise series of numeral keys and levers 1 which converge at their rear endsand are provided with a row oi": honnners 2. The keys on these leversare in transverse rows at the front of the machine, and the hammers- 2are in a longitudinal roi'v which is transverse to the rows of keys.'Ehiid mochines have transverse rails 25 on which it carriage operates.Eloid carriage is supported by anti-friction rollers lwhich operate uponthe rails 3. Eieries of rows or pins 5 are mounted in the ciufriogc andare settnblc by the key-levers 1 and hammers 2 to represent numbers. Anmnher of type carriers 6 and a number of rocks 7 sw from o she-ft 8,and are operutcd 'fOl'Wfllflljf end rearwurdly through suitablemechanism and appliances controlled by u moin shaft 9, a. handle 1.0, orother means being used for operating said shaft. Such operation of thetypc-eorriers and rocks, irrespective of the devices for effecting theirope ution, results in a. record of the numbers represented in thecarriage being produced on paper on e platen l1, and else results inoperation of the adding mechanisl'n 12 eilectively to add said numbers.

My present invention relates to the corrieg 'c and to its associatedmechanism. and to the me hunism for operating and controllinp; thecor-liege.

My invention includes improvel'nents in the arrangement end constructionof the rails in previous machines these mils are separate or detachedports. mounted on sepzr rote supports. l'lbvious infirmiitics oreinio'asrse herent in such construction and arrangement, among which maybe mentioned the insecurity of adjustment and the liability ofbee-omiijig flexed or bent, thereby destroying the accuracy of themachine when used for adding and recording numbers. I provide anintegral casting in which the rails 3 are eomponent parts. In saidcasting thereare three bridges or arches 3 connecting the side posts 3.,of which there are three at the front side and three at the rear side ofsaid casting. The rail 3 at the rear is integral with upward extensionsof said arches and posts, and the single roller 4 which supports therear side of the carriage, operates upon said rail The rail 3 at thefront side of the casting is integral with E-shaped brackets orextensions of the arches and posts,

the upper surface of said front rail being in the same horizontal planewith the first- .named rail. On the front side of the car riage thereare two rollers 4- which operate upon the upper surface of the frontrail. It will be noted that the three anti-friction rollers constitute atri-cycle support for the carriage, insuring absolute and accuratebalance of the carriage upon the firm and unchangeable support andtrack, at all times and under all conditions. The integral supportcannot become flexedfn'or any parts thereof dislocated. In its idle ornormal position the carriage is at the right hand side of the machinewith respect to the operator. At the opposite side 01" the machine is avertical rock shaft 13 to which is attached an arm 14. A spring 15 hasone end connected to said arm and the opposite end connected to astationary part 16, whereby said'shaft 13 is actuated in one direction.An arm or lever l1? attached to the shaft ill-and is provided in itsopposite or front end with an elongated slot l8 which receives a pin 19on the marriage, so that the spring constitutes a motor for moving thecarriage from rightlo left in the machine, orfrom lowerto her orders, asthe numeral keys I l The movement from right to i" from lower to higherorders, is

enema step b step through the medium of 1. Qijlihlilb device controlledby the key was .L. 'lhe reel-c .haft 2 extends transversely under thekey-levers l and is supported by adjustable point bearings 21 carried bythe parts 3 at the sides of the machine. 4 Two arms. are attached to therock shaft 20, and said arms support the universal bar 23 which restsand held yieldingly upon the upper e ot' the litj'rlCYClS l by asuitable spring 21-. Operation of any of the keylevers l raises theuniversal bar 23 and-rocks the shalt 20. Ana-arm 25 rigid with the shaft20 has a pin 26 projecting through a slot in a plate 27 rigid with themachine base, thereby limiting the movement of the parts and preventingdisarrangement thereof. A pawl support 28 is mounted on the shaft 20 andhas a hole in its lower end into which the pin 26 extends. Set screws 29are operatively mounted in the part 28 and which carry studs 34:- Tworacks 35 are under the front rail 3, have slots (Figs. 7 and 8) throughwhich the studs 34: extend and thereby support said racks and permitthem to move, or to be moved in the direction of their length, which istransversely over the key-levers 1. Said racks are separated by washers36. One of said racks 35 has a slot 37 (Figs. 7 and 8) through whichextends the pivot-38 of a pivoted toggle coupling or coupling-lever 39,said pivot 38 being supported by one of the arms 33. One of the racks 35has a notch in its upper edge, andthe other of said racks has a similarnotch in its lower edge which receive pins 40 on theends of the lever39. In idle position the pawl "30 is in-engaaement with the rack whichis in item (Fig. 3), but when any of the numeral key-levers 1 areoperated and the shaft 20 is rocked, said pawl 30 is moved intoengagement with the other rack 35. This permits the motor spring 15 tomove the carriage the distance of one-half of one step or space. (henthe keydever l is released the spring'Qd rocks the shaft 20 to its idleor normal position, thereby moving the pawl 30 into engagement with thefrontor first rack 35 and permitting the motor spring 25 to move thecarriage the remaining half step or space. The coupling- .lever39maintains the racks in accurate adjustment and prevents excess movementof either one. It will be noted that the es apement racks are devoid ofspring connections and that they are actuated only by the motor spring15 in the step by-step movement of the carriage. One side of the pawl 30is beveled or cut obliquely so that as the carriage is moved toward itsidle position or starting pointthe rack teeth will slide over said pawland press it down wardly into the housing in opposition :to thepawl-actuating spring 31. The means for moving or restoring the carriageto its position or starting point includes an arm 41 (Figs. 2 and 6)pivoted to the rock shaft 13 and having a pin 42 which is arranged toengage with a pin 43 on the arm ld'when the said arm 41' is swungrearwardl'y, and

threby turn the shaft 13 ell ectively to force the carriage toward thestarting point. it link 44 has its roar end pivoted to the arm ll, andconstitutes a mechanical element in the machine for operating the shaft13 to restore the. carriage to its idlc position or starting point aftereach operation From the foregoing it will be cloar that tho carriagecontrol mechanism accuratc and positivc in its movements, and is devoid'of delicate and fragile oleinonts which, in

such dcviccs, are the subject of many objcctions and iuiirmitics.

lit is apparent that many modifications will suggest themselves to thoseskilled in the art to which the invontion relates without departure fromthe spirit and scope of the invention. I do not restrict myself toidentical features of construction or arrangement, but

W hat I claim and desire to secure by their tors-Patent isl. Thecombination of a support adapted to be moved, keys, levers connectedwith and opcratcd by said keys, two racists carried by and movable withrespsct to said support, a universal bar moved by said levers at eachoperation thereof, a pawl, a spring normally holding said pawl inengagement with one of said racks, means actuated by said universal barfor moving said pawl into engagement with the other one ot said rackswhen any one 'ofsaid levers is operated, means for moving said supportwhen said pawl is 013- eratcd as aforesaid, substantially as specified.

it The combination. oi a support, keys, levers connected. with andoperated by said keys, two racks moi/ably carried by said sup-- port, apawl, means for moving said pawl into cngagcmont WilLli said racksaltcrnatcly when any one of said levers is operated, a couplingpivotally conncctiup, said racks and acting to move the other rack whensaid support is moved relative to either of said racks, and a spring formoving said support, substantially as specified.

3. the combination with a support, of two raclts slidably carricd bysaid support, a pawl normally in engagomcnt with one oi racks andholc'ling said support from movement, moans for movin said paw i: intoongagcnxont first with onc and than thc other of said racks to permit asinglc step movement of said support, means for moving said support whentho said pawl is sonic-vied, and a device actuator] incidentally to.rnoveincnt of said support to mom each of said raclis relatii to saidsupport, substantially as specified,

t. The combination with a support adapted to bo" inovcdand a, spring formoving, said support, of two racks supported by saidsu port, acoupling-lover pivotally coiuioot 1g said two racks for moving eachra-clt rolative to the other, a pawl engaging one of said racks to holdsaid support from 1novcincnt, moans for moving said pawl into engagementwith tho other of said racks and. then again with the first-named one ofsaid racks at each stop movement of said support and a spring for movingsaid support ono stop when said pawl is operated as aforesaid,suhstmitiallv as specified.

of'lho combination with a support adapted to be moved, a shaft, aconnection from. said shaft to said support, and a spring rotating saidshaft to move said support, of two racks lidably mounted by saidsupport, a pawl arranged to engage one ol said racks to prcvcnt movementof said support, lovers for moving said pawl into engagement with thesecond one of said racks, a spring for moving said pawl again intoengagement with the first one of said racks and a coupling device foractuating each ol said racks rclativc to the other, substantially asspecified. i

The combination with a movable support, a series of lovers, and a motorfor moving; said support, of stopping means for said support comprisingtwo racks supportcd by said support, a couplingdovcr-connoco ing saidracks whcrebysaid racks will be moved in opposite directions, and a pawlcontrolled by said first-named lovers to ensaid racks alternately andpermit said motor to move said support, substantially as specified.

7. The combination of a support adapted to be moved step by st-e levers,a motor spring for moving said support, a rack slidably carried by saidsupport, a pawl cngag-- inn-said rack and holding said support frommoven'ient, a second rack slidably c'arriod lay saicfl support, a couliliug-lovcr piv'otally connecting said two racks, tho combined movcniontof said two racks equaling a step or spaoo in the movement of saidsupport, and means moving said pawl out of engago inont with saidfirst-named rack into ongagement with said second-nan1cd melt, and thenback into engagon'icut with said firstnamed rack, incidentally to theoperation of each of said first-naniod lovers to permit movoluont oi.said siuiiport, substantially as F The combination with a support adapted to bc uiovdd step by step, levers, a motor spring for moving saidsupport, a raclt slid ably carried by said support, a pawl on ging saidrack and holding said support ..ioni inovcnient, a second racli".slidaloly can riod by said support, a couplingdevcr pivotally ominoctingsaid two racks, the combined movement of said two racks equaling orspace in the movement of said support, and means moving said pawl outotlioiwaooinont with. said first-named rack into iangg'agcmcnt with saidsecond na-inod rack, and then back into engagement with said first-namedrack incidentally to the operation of each of said first-named levers topermit movement of said support, and means for restoring said support toits startingpoint while said pawl is in contact with said first-namedrack, substantially as specified.

9. The combination with a movaiiie support adapted to be moved step bystep, and means for moving said support, of two racks mounted on andmovable withrespect to said movable support, a pawl, means for movingthe pawl into engagement with said racks alternately, and a leverpivotally uniting said racks whereby one of said racks will be movedwith respect to the other rack which is in engagement with said pawl,incidentally to thelnovement of said support.

10. The combination with a movable support adapted to be moved step bystep, and

means for moving said support, of two racks carried by and movable withrespect to said support, a lever pivotally uniting said two rackswhereby movement of one of said racks will actuate the other of saidracks, and a. pawl operative to engage with said racks alternately.

v(1'1. In a machine of the character described, a support, levers, tworacksc arried by said support, a shaft, a pawl supported by said shaft,a spring normally holding said pawl in engagement with one of saidracks, a universal bar operated by said levers for moving said pawl intoengagement with the other one of said racks when any of said levers isoperated, a device controlled by said support and by each of said racksfor moving both of said racks relative to said support incidentally tomovement of said support, and connections for knoving said support,substantially as speci- 12. In a' machine of the character described, amovable support, levers, two racks carried by said support, a pawl, ashaft for moving said pawl into engagement with 1 said racks alternatelywhen any one of said levers is ,operated, means actuated by said leversfor moving said pawl, a coupling pivotally connecting said racks,whereby when one ofsaid racks is held by said pawl the other rack willbe actuated incidentally to movement of said support, and a springactuated lever for moving said support, sub stantially as specified. p

13. In a machine of the character described, the combination with amovable support, of two relatively movable racks ,irried by'saidsupport, a pawl normally in engagement with one of said racks andholding said support from .movement, a rock shaft supporting said pawl,means for rocking said shaft to move said pawl into engagement,tirstwith one and then with the other of said racks to permit step stepmovement of said support, acoup controlled'by said racks for actuatingracks in opposite directions incidentally to the aforesaid operation ofsaid pawl, and a spring for moving said support when said pawl is somoved, substantially as specified.

14. The combination with a movable support, of a springfor moving saidsupport, two racks supported by said support, a coupling -leverpivotally connecting said two racks, a pawl engaging one of said racksto hold said support from movement; a rock shaft. supporting said pawl,means for moving said pawl into engagement with the other of said racksand then again with the first-named one of said racks at each movementof said pawl, and a spring actuated lever connected to said support formoving said support when said pawl is operated, substantially asspecified. v

"15. The combination with a movable sup to said support, and a springrotating said shaft to move said support, of two racks slidably carriedby said support, a rock shaft, a pawl supported by said rock shaft toprevent movement of said support, a universal bar operable to rocksaidshaft in one direction to engage said pawl with the secend one of saidracks, a pivoted coupling for controlling the movement of said racks,levers for actuating said universal bar, and

port, a motor for movingzsaid support, two racks carried by and jmovablerelative to said support, a' rock shaft, a pawl supported by said rockshaft, a spring actuating said rock shaft to hold said pawl inengagement with one of said racks, arms carried by said rock shaft, auniversal barcarried by said arms, levers'operabl to move saiduniversal. bar to movesa-id pawl into engagement with the other one ofsaid racks, andmeans preventing excess movement of said rock shaft,substantially as specified.

18. The combination with a support, two

port, a shaft, a connection from said shaft and arranged to engage oneof said racks a salin for movin said awl a ain into '17. The combinationof a movable supracks carried by and movable with respect to saidsupport, a lever pivoted upon said support, a connection between saidlever and each of said racks, a pawl, means formoving said pawlalternately into engage ment with said racks, and-means .tor mov-' ingsaid support when said pawl is-operited as aforesaid.

l9. Thecombination with a carriage to be moved and a motor :tor movingsaid carriage, of a plurality of studs supported by said carriage, tworacks slidably mounted on said studs, a lever engaging both of saidracks whereby when one of said racks is moved in one direction the otherrack will be moved in the opposite direction,- an escapement pawl, andmeans for engaging said pawl alternately with said racks to enable saidmotor to move said carriage 20. The combination with a carriage to bemoved, and a motor for moving said car-- riage, of two racks supportedmovably by said carriage, a device engaging one of said racks forcontrolling the movement of said carriage, means for shifting saiddevice to engage said racks alternately, and means whereby the power ofsaid motor'will move said racks relatively to eil'ect step by stepmovement of said carriage, substantially as specified.

21. The combination with a carriage to be moved, and a motor for movingsaid carriage, of two racks movably supported by saidcarriage, a leverpivot-ally connecting said raclfs whereby movement of one rack in onedirection actuates the other rock in the opposite direction, and anescapement pawl arranged to engage with said racks alternately,substantially as described,

22. The combination with a carriage to be moved, and a motor for movingsaid can riage, of two racks supported by and movable with respect tosaid carriage, an

' escapement pawl, means for engaging said.

escapementpamlwith said racks alternately and a lever supported by saidcarnage and.

engaging; both of said racks, substantially asspeciiied.

23. The combination with. a carnage to be inovech and a motor for movingsaid carriage, of two racks slidably carried by said carriage, a pawlnormally in engagement With one of said racks and holding said carriagefrom movement, and means for moving said pawl into engagement first withone and. then the other of said racks to permit a singlenstep movementof said. carriage.

24;. The combination with a carriage to be moved, and an actuator formoving said carriage, of two racks movable with respect to said carriageand controlling movement of said carriage, a pawl arranged to engage oneof said racks to prevent movement oi said carriage, levers formovingsaid pawl into engagement with the second one of said rocks, aspring for moving said pawl again into engagement with the first one ofsaid racks, and a lever supported by said carriage for actuating each ofsaid racks relative to the other substantially as spccified.

25. The combination with a carriage to be moved, and a motor for movingsaid carriage, of two racks supported by said carriage, a pawl normallyengaging one of said racks to prevent movement of said carriage, leversfor moving said pawl into ongagement with the second one of said racks,a spring tor moving said pawl again into engagement with the first oneo't'said racks, and means for actuating each oi. said racks relative tothe other, substantially as specitied,

in testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses,

Hasn't" nannsrnnnt In the presence o l'--:-'

R. D. Banana, A. U; Hownmt

